| 1 |
|
-module(chrme_session). |
| 2 |
|
-export([start/4, start_link/4, attach/4, await_start/1, stop/1]). |
| 3 |
|
|
| 4 |
|
-export_type([name/0, session/0]). |
| 5 |
|
-type name() :: chrme_ws_apic:name(). |
| 6 |
|
-type session() :: #{ |
| 7 |
|
name := name(), |
| 8 |
|
host := klsn:binstr(), |
| 9 |
|
port := integer(), |
| 10 |
|
target_id := klsn:binstr() |
| 11 |
|
}. |
| 12 |
|
|
| 13 |
|
%% Start a new Chrome debugging session by creating a new target and opening a WebSocket |
| 14 |
|
start(Name, Host, Port, Url) -> |
| 15 |
:-( |
start_(Name, Host, Port, Url, false). |
| 16 |
|
|
| 17 |
|
|
| 18 |
|
start_link(Name, Host, Port, Url) -> |
| 19 |
4 |
start_(Name, Host, Port, Url, true). |
| 20 |
|
|
| 21 |
|
start_(Name, Host, Port, Url, IsLink) -> |
| 22 |
4 |
case chrme_http_apic:new_target(Host, Port, Url) of |
| 23 |
|
{ok, TargetMap} -> |
| 24 |
4 |
Id = maps:get(<<"id">>, TargetMap), |
| 25 |
4 |
WsUrl = maps:get(<<"webSocketDebuggerUrl">>, TargetMap), |
| 26 |
4 |
{WsHost, WsPort, WsPath} = chrme_util:parse_ws_url(WsUrl), |
| 27 |
4 |
WsOpts = #{name => Name, host => WsHost, port => WsPort, uri => WsPath}, |
| 28 |
4 |
{ok, _Pid} = case IsLink of |
| 29 |
|
true -> |
| 30 |
4 |
chrme_ws_apic:start_link(WsOpts); |
| 31 |
|
false -> |
| 32 |
:-( |
chrme_ws_apic:start(WsOpts) |
| 33 |
|
end, |
| 34 |
4 |
{ok, #{name => Name, host => WsHost, port => WsPort, target_id => Id}}; |
| 35 |
|
Error -> |
| 36 |
:-( |
Error |
| 37 |
|
end. |
| 38 |
|
|
| 39 |
|
%% Attach to an existing debugging target by its ID |
| 40 |
|
-spec attach(name(), klsn:binstr(), integer(), klsn:binstr()) -> {ok, session()} | {error, term()}. |
| 41 |
|
attach(Name, Host, Port, TargetId) -> |
| 42 |
:-( |
case chrme_http_apic:list_targets(Host, Port) of |
| 43 |
|
{ok, Targets} -> |
| 44 |
:-( |
case [M || M <- Targets, maps:get(<<"id">>, M) =:= TargetId] of |
| 45 |
|
[TargetMap] -> |
| 46 |
:-( |
WsUrl = maps:get(<<"webSocketDebuggerUrl">>, TargetMap), |
| 47 |
:-( |
{WsHost, WsPort, WsPath} = chrme_util:parse_ws_url(WsUrl), |
| 48 |
:-( |
WsOpts = #{name => Name, host => WsHost, port => WsPort, uri => WsPath}, |
| 49 |
:-( |
{ok, _Pid} = chrme_ws_apic:start(WsOpts), |
| 50 |
:-( |
{ok, #{name => Name, host => WsHost, port => WsPort, target_id => TargetId}}; |
| 51 |
|
[] -> |
| 52 |
:-( |
{error, {no_such_target, TargetId}}; |
| 53 |
|
_ -> |
| 54 |
:-( |
{error, {ambiguous_targets, TargetId}} |
| 55 |
|
end; |
| 56 |
|
Error -> |
| 57 |
:-( |
Error |
| 58 |
|
end. |
| 59 |
|
|
| 60 |
|
-spec await_start(name()) -> ok. |
| 61 |
|
await_start(Name) -> |
| 62 |
18378 |
case chrme_ws_apic:is_connected(Name) of |
| 63 |
|
true -> |
| 64 |
4 |
ok; |
| 65 |
|
false -> |
| 66 |
18374 |
await_start(Name) |
| 67 |
|
end. |
| 68 |
|
|
| 69 |
|
%% Stop the debugging session, close WebSocket and target |
| 70 |
|
stop(#{name := Name, host := Host, port := Port, target_id := Id}) -> |
| 71 |
4 |
chrme_ws_apic:stop(Name), |
| 72 |
4 |
chrme_http_apic:close_target(Host, Port, Id), |
| 73 |
4 |
ok. |